Question # 1

A slab of ice 8 inches in length, 11 inches in breadth and 2 inches hick was melted and re-solidified into the form of a rod of 8 inches diameter. The length of such a rod, in inches ins nearest to

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3.0

4.5

3.5

4.0

Who first commercially successful invention was the universal stock ticker?

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Joseph Priestley

Thomas Alva Edison

Paul Ehrich

Thomas Newcomen

Who coined the word vaccination?

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Edward Jenner

Franklin

Ernst Mach

John Dalton

In what year was Diet Coke invented

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1982

1966

1943

1980

Vitamin B-7 is also known as:

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Biotin

Ascorbic Acid

Thiamine

Retinol

Most of the ozone in the atmosphere is concentrated in the?

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Mesosphere

troposphere

Stratosphere

Ionosphere

Light travels slower in glass than in air because?

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Refractive index of air is less than that of glass

Refractive index of air is greater than that of glass

Density of glass is less than that of air

Density of glass of greater than that of air

Who identified first that a quality in fruit prevented the disease of scurvy?

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Albert Szent-Gyorgyi

Henrik Dam

Sir F.G. Hopkins

James Lind

The control center of cell is what?

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Cytoplasm

Mitochondria

Nucleus

DNA

Which fo the following enzymes is present in the saliva

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Bile

ptyalin

pepsin

Rennin

Radio, Angle, Detection And Rangs (Radar)is used to detet the direction and range of an aeroplane are-plane by means of:

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Radio microwaves

Heat microwaves

Gamma microwaves

Ultra light microwaves

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